Liquid dispensing and spraying machine



March 10, 1925.

1,528,979 J. W. MASHBURN LIQUID DISPENSING AND SPRAYING MACHINE Filed Dec. 18, 1922 2 Sheets-Sheet 1 Eye/71 02;

John M M153 22am March 10, 1925. 1,528,979

J. W. MASHBURN LIQUID DISPENSING AND SPRAYING MACHINE Filed Dec. 18, 1922 2 Sheets-Sheet 2 22 (w/gas: Job-n LIT/Was? Zu-rn Patented Mar. 10, 1925.

U NITED STATES PATENT OFFICE.

JOHN W. MAS'HIBU-RN, OF KANSAS CITY, MISSOURI, ASSIGNOR TO AMERICAN PER- FUME VENDING COMPANY, 'OF KANSAS CITY, MISSOURI, A COM-MON LAW TRUST.

LIQUID DISPENSING AND 'SPRAYING- -MACHINE.

Application filed. December 18, 1922.

To all 'QOILOHL it may concern *Be it known "that I, JOHN IV. lYIAs IBURN, a citizen of the United States, and resi dent of Kansas City, county of Jackson, State of Missouri, have invented a certain new and useful Improvement in Liquid 'Dis pensing and Spraying Machines, of which the following is a complete specification.

This invention relates to liquid dispensing machines, and aims to provide an improved'apparatus of this character in which the liquid is discharged in the form of a spray, the particular object in view being to devise an eflicient coin-controlled ma chine for dispensing perfume material.

Accordingly I have devised an apparatus in cabinet form, in which is provided a vending mechanism of the coin-controlled type, and one of the particular improved features of which is the absence of any elements of a spring actuated character, all parts of the mechanism being positively actuated and controlled.

In the preferred form of the machine, the same comprises a pumping device having its plunger rod adapted to be operatively connected to a control member through the inscrtion of a coin, together with means for preventing any reverse operation of said member prior to the release of the coin. Further features of the improvements comprise suitable provision for the adjustment of the stroke of the plunger, and means for vairyingthe effective action of the pumping device, as well as a simple arrangement for counting the strokes of the plunger.

IVith the foregoing objects in view, the invention will now be described by reference to the accompanying drawings, illustrating one form of construction which I have devised for embodying the proposed features of improvement. after which the same will be particularly set forth andclaimed.

In the -drawings Figure 1 is a perspective view of an apparatus constructed in accordance with the present invention;

Figure 2 is an enlarged vertical sectional view of the lower portion of the same, re resenting a section taken on the line II I of Figure 3;

Figures 3 and 4: are sections taken on the Serial N0. 607,632.

these show the improved machine as comprising a cabinet 10 access to the lower portion of which is obtained by means of a door 11 provided with suitable locking means, the top of the cabinet being formed with a hinged cover 12 adapted to be latched from within by means of the catch 13 (see Figure 2). At the rear of the cabinet, if desired, the same may be formed with an upwardly projecting frame 14 for holding a mirror 15, or any other device that may be preferred.

Inside the cabinet and on the bottom thereof is provided a holder 16 adapted for clamping and retaining engagement with the container 17 of the material, such as liquid perfume, to be dispensed, the dispens= ing operation in the present case consisting of discharging the liquid in the form of a spray through a nozzle 18 appropriately positioned, as by projecting through a suitable opening in the door 11, for dis charging the spray outward and upward at the front of the machine. The door 11 is formed with a tapered opening 19 for convenient engagement and disengagement from the nozzle 18, in the opening and closing of the door. The spraying is effected by the usual atomizer construction 20 provided with a tubular connection 21 with a pump cylinder 22 supported upon a horizontal frame member 2-3 within the upper portion of the cabinet 10. \Vithin the cylinder 22 is operated a plunger or piston 2 1 connected to a plunger rod 25 of square cross-section, the front end of which is slidingly engaged with the front wall of a coinreceiving pocket 26, formed with a rectangular opening 27 embracing said rod 25 (see Figure 4). Inside the coin pocket 26, the end of the rod 25 is fitted with an arm 28 extending first downward and then laterally in position for engagement of the free cut away sufficiently to clear thearm 28, in

the event there is no coin in the pocket 26. The movement of the pocket 26 is steadied by means of guide rods 33 extending parallel to the rod 25, and engaging recesses 34 formed in the sides of pocket 26. The slide member 32 operates through a bearing 35 inthe front wall of the cabinet 10, whereby it is carried in alinement with the plunger rod 25. WVhile the inward movement of theslide member 32 is without effect upon the plunger rod in case no coin is within the pocket 26, the outward or retracting movement of said slide member is designed toeffect also a retracting movement of the rod 25, due to the engagement of the arm 28 with the interior face of the-rear wall of the pocket 26 at the lower margin of the opening 27, as indicated in Figures 3 and. 5. The outward or retracting movement of the slide member 32 is designed to bring the coin pocket 26 in register with a coin slot 37 in the topor cover 12 at the front of the cabinet 10, this slot 37 being fitted with a face plate 38 provided with a slot39 of. a size adapted to just permit passage of a coin 40 of the denomination selected for use in the operation of the machine. The rear wall of the pocket 26 is formed with an inwardly projecting finger'42, adapted to deflect the coin toward the middle of the pocket and prevent its engagement withthe end of the plunger rod 25; the inner face of the front wall of the coin pocket 26 is also provided with inwardly projecting bosses or knobs 43 for engagement with opposite sides of the coins center, the combined action of both sets of these projections 42 and 43 being to deflect the coin into vertical position, out of engagement with either the front or rear wall of the pocket, and in proper posi tion for engagement with the rear end of the plunger rod, preparatory to transmitting the pushing action of the slide member 32 to said plunger rod for effecting the operative movement of the plunger. The inserting movement of the coin 40 is stopped by the front end of a rack member 44 supported by the horizontal frame member 23, and extending parallel to the plunger rod 25. This rack member 44 serves the purpose of retaining the coin 40 within the coin pocket 26 and thereby maintaining the operative connection between the slide member 32 and rod 25 during the rearward or operative movement of the slide member; the teeth 45 of the rack member 44 are likewise inclined rearward for preventing any retraction of the slide member 32 for a given comprising a collar 46 adjustably mounted upon one ofthe guide rods 33 and adapted to be clamped in any desired position by means of a set screw 47 (see Figureo3).

This collar 46 serves to limit the forward 2 or operating movement of the slide member 32 by engagement witlL the coin pocket 26 which, of course, in turn correspondingly limits the working movement of the plunger 24. The effective action of this plungermay also be varied by suitably modifying the intensity of the vacuum action produced within the cylinder 22, which in the present case I accomplish by providing a series of openings 48 in that end of theccylinder 22 corresponding to the retracted position of the plunger 24, as shown in Figure 2,

one or more of these'openings 48 being closed by means of a sleeve 49 mounted for sliding movement upon the cylinder and over said openings. I

The interior of the cabinet, 10 is also provided with a shutter or coin-slot closure 50, pivoted as indicated at 51 in Figure 3 in position for swinging movement across the coin slot 37 at the inner face of the top or cover 12. This shutter or closure member 50 is provided with a curved and rearwardly projecting arm 52 extending in position for engagement by one side of the coin pocket 26; this arrangement is such that, as the coin pocket 26 is moved rearward out of register with the slot 37, it engages the arm 52 and thereby swings the shutter 50 across the slot 37, thereby preventing the,

insertion of another coin; thereafter, on retraction of the slide member 32 and corre sponding movement of the coin pocket 26,

the latter clears the arm 52 and engages the shutter member 50 and moves the same into the position illustrated in Figures 2 and 3, for opening the passage through the slot 37 and allowing anew coin to be inserted.

From the foregoing it will be seen that I have devised a simple, and yet practical.

and eflicient construction for carrying out the desired objects of the invention, one of the outstanding features of which is the absence of any, mechanism of a. spring-actuated character, and using only operating parts of a positively actuated and controlled type. Each dispensing operation of the machine is designed to be carried out by the insertion of a coin through the slots 37 and 39 into the coin pocket 26, each successive operation requiring an additional coin to be inserted. Each inserted coin drops into the position illustrated in Figure 5, the projections 4-2 and 43 positioning the coin vertically ready to be thrust against the end of the plunger rod 25, and one of the features of advantage attending the provision of these projections 42 and 43 is that, in case of the coin being coated with any adhesive substance, these projections maintain the same out of engagement with the. inner faces of the coin pocket, so that on completion of the operative movement of the slide member 32 the coin will the more readily drop from the pocket through the opening 52 in the frame member 33 at the rear end of the rack member 44. Now as the slide member 32 is moved inward, it pushes the rod and the plunger 24 in the same direction, the coins being of course carried along in the coin pocket, being gripped between the end of the plunger and the projections a3, and in case this gripping movement should become relaxed, the rack member A will prevent the release of the coin. The teeth of the rack member also prevent any outward retracting movement of the slide member, such as an operator might attempt to produce for obtaining more than one dispensing operation for the same coin; and, as already pointed out, the length of the rack member at is sufficient to prevent the release of the coin before the slide member 32 has moved a distance sulficient to impart a substantial operative movement to the plunger. This movement is stopped by the set collar l6, whereupon the reversal of the slides movement will release the coin through the opening 52, and the return movement of the slide 32 will, by engagement of the rear wall of the coin pocket 26 with the arm 28, also retract the plunger rod 25 to initial position. Each operation of the plunger 24 is counted by the register device 30, and between operations the slot 37 is maintained closed by the action of the shutter 50, in the automatic manner already explained.

IVhile I have illustrated and described what I now regard as the preferred form of construction, I desire to reserve the right to make such changes or modifications as may fairly fall within the scope of the appended claims.

Vhat I claim is:

' 1. A liquid dispensing apparatus comprising, in combination, a spraying device, a pump cylinder provided with a plunger and with a connection to said device, a rod connected with said plunger, and a slide member in telescoping relation with said rod provided with a coin pocket and adapted to be operatively connected with said rod for advancing the same through the medium of a coin inserted in the pocket, said slide member having means for engaging means carried by the rod and positively retracting said rod in the retracting movements of said slide member, a portion of the front wall of the pocket being cut away sufficiently to clear said means carried by the rod in the absence of a coin in the pocket.

2. A liquid dispensing apparatus comprising, in combination, a spraying device, a pump cylinder provided with a plunger and with a connection to said device, a rod connected with said plunger, and a slide member provided with a coin-receiving pocket having one side thereof engageable with said rod for retracting the same, said slide member being adapted to make operative connection with said rod to advance the same through the medium of a coin inserted in said pocket in abutting re lation to the end of said rod, the front portion of said pocket being cut away sufficiently to clear the rod in the absence of a coin in the pocket.

In witness whereof I hereunto aflix my signature.

JOHN WV. MASHBURN. 

